n! is nature blessed. And nature follows it. As gamma functions.
n! is also used in imaginative problems as in combinations and permutations.
Do not be confused with decimal factorials. They are of gamma functions.
Below are two expressions that can calculate gamma functions. These can be used for calculating n! as n! is nothing but gamma(n+1).
Keep solving your very own imaginative combinations and permutations problems. And when you think of decimal factorials think these are of gamma functions.
I think this way. And I hope this helps you too !!.
Have a nice day !! And keep smiling !!
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